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Title: All solid-state SBS phase conjugate mirror

Abstract

A stimulated Brillouin scattering (SBS) phase conjugate laser mirror uses a solid-state nonlinear gain medium instead of the conventional liquid or high pressure gas medium. The concept has been effectively demonstrated using common optical-grade fused silica. An energy threshold of 2.5 mJ and a slope efficiency of over 90% were achieved, resulting in an overall energy reflectivity of >80% for 15 ns, 1 um laser pulses. The use of solid-state materials is enabled by a multi-pass resonant architecture which suppresses transient fluctuations that would otherwise result in damage to the SBS medium. This all solid state phase conjugator is safer, more reliable, and more easily manufactured than prior art designs. It allows nonlinear wavefront correction to be implemented in industrial and defense laser systems whose operating environments would preclude the introduction of potentially hazardous liquids or high pressure gases.

Inventors:
 [1];  [1]
  1. (Livermore, CA)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
872184
Patent Number(s):
US 5880873
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
solid-state; sbs; phase; conjugate; mirror; stimulated; brillouin; scattering; laser; nonlinear; medium; conventional; liquid; pressure; gas; concept; effectively; demonstrated; common; optical-grade; fused; silica; energy; threshold; mj; slope; efficiency; 90; achieved; resulting; overall; reflectivity; 80; 15; pulses; materials; enabled; multi-pass; resonant; architecture; suppresses; transient; fluctuations; otherwise; result; damage; solid; conjugator; safer; reliable; easily; manufactured; prior; designs; allows; wavefront; correction; implemented; industrial; defense; systems; operating; environments; preclude; introduction; potentially; hazardous; liquids; gases; sbs phase; operating environment; fused silica; laser pulses; pressure gas; laser pulse; otherwise result; laser systems; stimulated brillouin; brillouin scattering; overall energy; slope efficiency; phase conjugator; phase conjugate; potentially hazardous; pressure gases; conventional liquid; gas medium; conjugate mirror; laser mirror; /359/372/

Citation Formats

Dane, Clifford B., and Hackel, Lloyd A. All solid-state SBS phase conjugate mirror. United States: N. p., 1999. Web.
Dane, Clifford B., & Hackel, Lloyd A. All solid-state SBS phase conjugate mirror. United States.
Dane, Clifford B., and Hackel, Lloyd A. Fri . "All solid-state SBS phase conjugate mirror". United States. https://www.osti.gov/servlets/purl/872184.
@article{osti_872184,
title = {All solid-state SBS phase conjugate mirror},
author = {Dane, Clifford B. and Hackel, Lloyd A.},
abstractNote = {A stimulated Brillouin scattering (SBS) phase conjugate laser mirror uses a solid-state nonlinear gain medium instead of the conventional liquid or high pressure gas medium. The concept has been effectively demonstrated using common optical-grade fused silica. An energy threshold of 2.5 mJ and a slope efficiency of over 90% were achieved, resulting in an overall energy reflectivity of >80% for 15 ns, 1 um laser pulses. The use of solid-state materials is enabled by a multi-pass resonant architecture which suppresses transient fluctuations that would otherwise result in damage to the SBS medium. This all solid state phase conjugator is safer, more reliable, and more easily manufactured than prior art designs. It allows nonlinear wavefront correction to be implemented in industrial and defense laser systems whose operating environments would preclude the introduction of potentially hazardous liquids or high pressure gases.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}

Patent:

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